Does any of you consider the kind of batteries used in the powerbank?
there are two types:
Li-Ion and Li-Polymer

Google about them and find out that explosion reported in Li-Ion powerbank, while none on Li-Polymer powerbank.

So, what do you think about this and would you suggest Li-Polymer is a better choice?

My another concern is that can we bring the powerbank on board a plane?? either in hand carry or check in luggage.

Lastly, anyone tried the Probox Sanyo 5200 / 7800 powerbank before? it does look very trendy!! pls share if you do. thx